两种絮凝工艺去除污水中金属元素的对比试验  

Experimental research on removal of metal elements in wastewater by chemical flocculation and chemical bio-flocculation processes

作　　者：周玉松[1] 任福民[1] 许兆义[1] 夏四清[2] 

机构地区：[1]北京交通大学市政与环境工程系,北京100044 [2]同济大学水污染控制与资源化研究国家重点实验室,上海200092

出　　处：《给水排水》2006年第4期44-47,共4页Water & Wastewater Engineering

基　　金：国家高技术研究开发计划(863计划)2002AA601320

摘　　要：分别采用化学生物絮凝与化学絮凝两种工艺处理同一低浓度城市污水,对比分析污水中金属元素的去除效果。试验结果表明,在相同加药量的条件下,化学生物絮凝工艺在增加絮凝产物中铝元素含量的同时,对部分有害重金属的控制也优于化学絮凝工艺。但该工艺在处理高浓度污水时,处理效果会受重金属浓度的制约。Experiment was conducted to treat the same low concentrated municipal wastewater by both chemical flocculation （CF） and chemical bio-flocculation （CBF） processes and the removals of metal elements were investigated. The experimental results showed that at condition of same chemical dosage, in aluminum increasing of coagulants the capacity of CBF to control hazard metals was better than that of CF. But this process will concentrated wastewater treatment. be restricted by heavy metal level in case of high

关 键 词：化学生物絮凝 化学絮凝 重金属浓度 金属元素 

分 类 号：X703[环境科学与工程—环境工程] X703.1